I can't like this enough times. Been trying to get back into the reading game I had in my youth and I always forget that published/classic books are actually much easier and usaully way shorter than webnovels which aren't in a final polished stage so like...I hope people won't be intimidated by classic books. Give em a shot.
I'mma add
Get to the heart of why Genres succeed instead of just blaming the surface elements of the genre
BL isn't successful just because it's two anime boys falling in love. It's successful because of the way the genre is delivered--it's phone friendly and easy to binge. Anime faces are simple enough they look good on tiny phones. There's not a lot of confusing things happening, so the gist of the plot can be delivered very quickly--within the first update, even. There's a lot of ways to make a hook at the end of updates before the next update. People are drawn to lifestyles outside of their own, etc etc.
Fantasy isn't successful because it's a bunch of fantasy creatures and complicated magic systems. It's successful because of the human elements present in a fantasy setting. That anyone on any version of the planet will feel the same emotions I do as well. The extreme plot devices leave a lot of room for extreme emotional beats. there's room for a lot of action sequences, and a lot of satisfaction when heads start to roll and when justice prevails.
We have a tendency to get stuck on the pretty dragons and the volumes of lore and the amount of LGBT representation instead of like...addressing the storytelling successes that each genre is built on. In particular for scroll style webcomics, the unique visual storytelling techniques that helps to tell each genre apart and makes them feel fun and bingeable. Like, study that stuff. You don't need to be in the genre to learn this stuff.
Not all advice is good
If you took all the advice on the internet you'd have a lot of dissenting opinions. That and I've seen some pretty bad advice on this ye internet sometimes
Someone will probably get offended
Welcome to the internet. Can't make everyone happy. Accept it now. Your book will piss someone off.
This doesn't mean you have the right to offend people and should become some gross loose cannon--but nearly everything you make will offend somebody someday. So let that fear go. Congrats. You've already offended someone probably by just existing. Just let it go. breathe it out. Ahhhhh.
(the Ahhhhhh just now was a breathing sound, but if you read it as a screaming sound, this is also OK for the context)